FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
Help Close All Open All
General Information
Term embryonic immature Va neurosecretory neuron ID (Ontology) FBbt:00053351 (Fly Anatomy)
Definition Immature neuron in the developing VNC of the embryo that is derived from neuroblast NB5-3 and has a ventral soma (Suska et al., 2011; Gabilondo et al., 2011; Gabilondo et al., 2018). It is a Notch OFF neuron and its sibling Notch on cell dies by apoptosis (Gabilondo et al., 2011). In segments A1-A4, these cells develop into neurosecretory cells (Suska et al., 2011; Gabilondo et al., 2018). More posterior neurons undergo apoptosis prior to stage 16 (Suska et al., 2011; Gabilondo et al., 2011). In thoracic segments, they do not acquire a neurosecretory fate (Suska et al., 2011).[ FlyBase:FBrf0213290 FlyBase:FBrf0214309 FlyBase:FBrf0238644 ]
Comment Gabilondo et al. (2011) only show Capa+ A2-A7 neurons. Gabilondo et al. (2018) additionally show A1 Va neuron in NB5-3 lineage. Suska et al. (2011) show Dac+/Dimm+ cells in A8 and Dimm+ in T1-3 in same position as Va and refer to these as 'Va'. They do not directly demonstrate developmental origin, but A8 neurons survive and produce Capa in Abd-B mutants, suggesting Va identity. Gabilondo et al. (2018) could transform thoracic neurons into AstA+/Dh31+ cells with Ubx expression, also suggesting Va identity.
Links to External Ontologies
VFB:FBbt_00053351
Annotations
Records annotated with this term OR any of its CHILD TERMS
No relevant records available
Records annotated with this exact term (annotations to child terms are NOT included)
No relevant records available
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
No relevant statements available
Spanning Tree (Parents/Children)
Only view relationship:
developing material anatomical entity
 |__developing embryonic structure________
primary neuron                            |
 |__Notch OFF hemilineage primary neuron__|
 |__NB5-3 lineage primary neuron__________|
 |__immature primary neuron_______________|
NB5-3 lineage neuron                      |
 |__NB5-3 lineage primary neuron__________|
Notch OFF hemilineage neuron              |
 |__Notch OFF hemilineage primary neuron__|
immature neuron                           |
 |__immature primary neuron_______________|
                                          embryonic immature Va neurosecretory neuron
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a developing embryonic structure
Notch OFF hemilineage primary neuron
NB5-3 lineage primary neuron
immature primary neuron
Part of presumptive embryonic/larval central nervous system
hide Synonyms & Secondary IDs
Synonyms
Secondary IDs
hide External Crossreferences & Linkouts
VFB:FBbt_00053351